Gun rights advocates flocked to the Washington, DC area on Monday to push for greater access to firearms and protest against the Obama administration. Near the Washington Monument on the National Mall, activists assembled for a "Second Amendment March." Sponsors listed on the website include the Oath Keepers, as well Gun Owners of America, led by Larry Pratt, who has a long history of involvement with far-right groups. GOP Rep. Paul Broun of Georgia addressed the crowd.

A second, smaller event took place across the Potomac in Virginia—where it's legal to openly carry weapons in a national park. With handguns and rifles at the ready, activists met for an armed "Restore the Constitution" rally, which started at Fort Hunt National Park and moved to Gravelly Point. Mother Jones' Andy Kroll was at the DC event, while Stephanie Mencimer was on the scene in Virginia. Here are some of their photos.